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偶氮聚碳酸酯的制备与性能研究
Preparation and Properties of Azobenzene Polycarbonate
【摘要】 以对氨基苯甲酸、亚硝酸钠和苯酚为原料,通过重氮偶合反应合成了对羟基偶氮苯甲酸,并用红外光谱和核磁共振对所合成的对羟基偶氮苯甲酸的结构进行了表征。将羟基偶氮苯甲酸与聚碳酸酯进行熔融混合并进行酯交换反应,制备了偶氮聚碳酸酯。通过光学性能和力学性能研究发现,所制备的偶氮聚碳酸酯具有优异的光致变色性能和透明性,力学性能与聚碳酸酯相当。
【Abstract】 4-(hydroxyl),4’-(carboxyl) azobenzene was synthesized by using p-aminobenzoic acid,sodi- um nitrite,and phenol via am-coupling reaction,and the structure was characterized with FTIR and NMR.The resulted product was blended with polycarbonate in an internal mixer to carry out the trans- esterifieation leading to azo-polyearbonate.The obtained product possessed the photochromic of azoben- zene groups with the transparency and mechanical properties of polycarbonate.
【关键词】 偶氮苯;
聚碳酸酯;
光致变色;
酯交换反应;
【Key words】 azobenzene; polycarbonate; photochromism; transesterification;
【Key words】 azobenzene; polycarbonate; photochromism; transesterification;
【基金】 国家863计划项目(2002AA333110)
- 【文献出处】 中国塑料 ,China Plastics , 编辑部邮箱 ,2008年06期
- 【分类号】TQ323.41
- 【下载频次】175